I currently have ls6 springs for my Lingenfelter gt2-3 207/220 .573/.578 118.5 lsa cam. I thought dual springs would be my best bet because I would have some insurance. I heard that the 918's have to be changed after 25k miles and are prone to breaking.

What dual valve springs would you recommend?

 

TEA gold or Patriot gold (same spring) - good to .650" lift. Comp 921s are pretty nice also, had those in my last heads.

 

I can see them the CC 918's being changed every 25 with a close to .600 lift cam. You shoud be fine with the 918's and that cam.